Any device that makes work easier is called a.

A rigid tank contains 1.80 moles of helium, which can be treated as an ideal gas, at a pressure of 27.3 atm. While the tank and gas maintain a constant volume and temperature, a number of moles are removed from the tank, reducing the pressure to 5.

In a domestic electric circuit (220. V), an electric kettle of 3kW power rating is operatedthat has a current rating of 4A. What result do you expect? Explain.

2/25/20 or 2/28/20 Dispatch #53 How much power is required to carry a 35 N package a vertical distance of 18 m if the work on the package is accomplished in 30 s? Students, we you feel

At 120*C, the pressure of a gas is 107 kPa. What will be the pressure at 205^ * C

The latitude of any location on earth is the angle formed by the two rays drawn from the center of earth to the location and to the equator. the ray through the location is the initial ray. use 3960 miles as the radius of the earth.

A nuclear power plant generates a total of 150mw of power and 45% of this power is wasted heat that is discharged on the cooling water of a river. the river flows at 660.43 gal/s and has an upstream temperature of 64.4 ⁰f.

The universe is believed to have been form from a very dense fireball billions of years ago.

What does the slope of the line on this velocity versus time graph represent? A. positive deceleration B. zero acceleration C. positive acceleration D. negative acceleration

Which of the following objects has the greatest kinetic energy? a baseball flying through the air at 90 miles per hour a baseball flying through the air at 45 miles per hour a baseball flying through the air at 20 miles per hour a baseball sitting

Peter found an amazing fact in an amusement park when he tried to ride the Magic Mountain Superman. Powerful magnets accelerate a car and its riders from zero to 45 m/s in 7 seconds. Suppose the mass of the car and riders is 5,600 kg.